摘要:
An image forming apparatus includes a cylindrical or annular fixing member, an outer surface of which is brought into pressure contact with a conveyed sheet to fix an image onto the sheet; and a heating source for heating the fixing member to a specified target temperature. The fixing member includes a cylindrical or annular base material, a rubber layer with elasticity, and an outer layer for aiding release of the sheet. An end portion of the rubber layer and an end portion of the outer layer are each positioned inner than an end portion of the base material with respect to a width direction perpendicular to a circumferential direction on the base material. A filter member capable of trapping ultra fine particles generated from the rubber layer is provided on the base material in a position facing the end portion of the rubber layer along the circumferential direction.
摘要:
An image forming apparatus having; a fusing unit that heats and presses a recording medium with an image transferred thereto, thereby fixing the image thereon; a first duct section in which air that contains emissions generated by the fusing unit flows; an ion generation unit provided away from the first duct section to generate ions; a second duct section in which air that contains the ions generated by the ion generation unit flows; a third duct section connected to the first and second duct sections, such that air flows in from the first and second duct sections, whereby the emissions are charged by the ions; a filter unit provided in the third duct section to trap the charged emissions; and a blowing unit that generates air flows from the connections with the first and second duct sections in the third duct section toward the filter unit.
摘要:
An image forming apparatus includes a driving source, a first rotator, a first power transmission system, at least one second rotator, a second power transmission system, and a damper. The driving source generates power. The first rotator is drivingly rotated by the power generated by the driving source. The first power transmission system transmits the power from the driving source to the first rotator. The second rotator is further downstream than the first rotator in a flow of power transmission. The second power transmission system transmits the power from at least one of the first power transmission system and the first rotator to the at least one second rotator. The damper attenuates oscillation between the first power transmission system and the second power transmission system or between the first rotator and the second power transmission system.
摘要:
In a beltless tandem-type image forming apparatus, a plurality of pairs of transfer rollers are placed side by side at intervals along a conveying direction of sheets. A control section independently conveys sheets in sequence through nip sections of respective pairs of transfer rollers driven by a driving section while sequentially transferring images formed by an imaging section onto the sheets. Conveying speeds of the respective pairs of transfer rollers controlled by the driving section are gradually decreased for every pair of transfer rollers from an upstream side toward a downstream side along a conveying direction of the sheets, and consequently, a driving period for driving the respective pairs of transfer rollers to convey each sheet is gradually increased for every pair of transfer rollers from the upstream side toward the downstream side along the conveying direction of the sheets.
摘要:
An image forming apparatus includes a plurality of image carrier rollers placed on an inner circumferential side of an annular conveying path so as to face the annular conveying path and so as to be juxtaposed in a sheet conveying direction along the annular conveying path. Opposed rollers are provided on the outer circumferential side of the annular conveying path. The respective image carrier rollers and the opposed rollers which are in pressure contact therewith constitute pairs of transfer rollers, respectively. Imaging sections for forming intrinsic color images on surfaces of the respective image carrier rollers are provided. A sheet is introduced to the annular conveying path and is conveyed along the sheet conveying direction sequentially through nip sections of the pairs of transfer rollers, while the images formed on the surfaces of the respective image carrier rollers by the imaging sections are transferred one by one onto the sheet. The sheet with the images transferred thereon is released from the annular conveying path.
摘要:
An image forming apparatus having; a fusing unit that heats and presses a recording medium with an image transferred thereto, thereby fixing the image thereon; a first duct section in which air that contains emissions generated by the fusing unit flows; an ion generation unit provided away from the first duct section to generate ions; a second duct section in which air that contains the ions generated by the ion generation unit flows; a third duct section connected to the first and second duct sections, such that air flows in from the first and second duct sections, whereby the emissions are charged by the ions; a filter unit provided in the third duct section to trap the charged emissions; and a blowing unit that generates air flows from the connections with the first and second duct sections in the third duct section toward the filter unit.
摘要:
An image forming apparatus includes a driving source, a first rotator, a first power transmission system, at least one second rotator, a second power transmission system, and a damper. The driving source generates power. The first rotator is drivingly rotated by the power generated by the driving source. The first power transmission system transmits the power from the driving source to the first rotator. The second rotator is further downstream than the first rotator in a flow of power transmission. The second power transmission system transmits the power from at least one of the first power transmission system and the first rotator to the at least one second rotator. The damper attenuates oscillation between the first power transmission system and the second power transmission system or between the first rotator and the second power transmission system.
摘要:
A fusing apparatus allows a recording member to pass through between a heat member and a pressure member, to transport and heat the recording member, and thereby fuses a toner image on the recording member. The fusing apparatus includes a temperature detector for detecting a surface temperature of the heat member in a non-contact manner. A surface of the heat member is configured such that a region of the surface all around a cylindrical configuration that faces a temperature detection area of the temperature detector has a higher emissivity than other regions.
摘要:
A fusing apparatus allows a recording member to pass through between a heat member and a pressure member, to transport and heat the recording member, and thereby fuses a toner image on the recording member. The fusing apparatus includes a temperature detector for detecting a surface temperature of the heat member in a non-contact manner. A surface of the heat member is configured such that a region of the surface all around a cylindrical configuration that faces a temperature detection area of the temperature detector has a higher emissivity than other regions.
摘要:
In a beltless tandem-type image forming apparatus of the invention, a plurality of pairs of transfer rollers are placed side by side at intervals along a conveying direction of sheets. A control section independently conveys sheets in sequence through nip sections of respective pairs of transfer rollers driven by a driving section while sequentially transferring images formed by an imaging section onto the sheets. Conveying speeds of the respective pairs of transfer rollers controlled by the driving section are gradually decreased for every pair of transfer rollers from an upstream side toward a downstream side along a conveying direction of the sheets, and consequently, a driving period for driving the respective pairs of transfer rollers to convey each sheet is gradually increased for every pair of transfer rollers from the upstream side toward the downstream side along the conveying direction of the sheets. The control section performs control so that an imaging period by the imaging section is synchronized with a driving period by the driving section in every pair of transfer rollers.